Spar-base.



E. A. L J. F. GASKILL.

SPAR BASE.

APPLICATION FILED JUNI. 13, 1912.

1,044,771 Patented Nov. 19, 1912.

,l y ATTORNEY.

im hm WI T NESSES:

EDWIN LA.' GAS iw i n nim-Joanna rnnnnnrn Giannini., on. nnnnmnnwnsr minimiza.

spenen.

ySpecification of Letters Patent.

i .atented'nim 1o, 191e.

riginal application led lMarch. 25,191.2,Se1'ia1 No. 686,183. 'Divided and this application 1cd'ifune13,

1 1912. Eeral. No. 703,110?.

To all 'whom 'it may concern:

Be it'known that we,FnwIN A. GABKEL and Josnrii FRANKLIN Grasnnin, citizens oi the United States, residing atLanevillain the county of Tucker and 'State of 'est Virginia, have Jointly invented a certain new and useful improved `SpariBase, of which the following is a specication.

Ilhis invention relates to apparatus used yin connection with the skidding of logs and has more particular-relation to the providing of a novel spar base-for use in conjunc-` tion with a spar and sparcap 1n the overhead skidding of logs, as set forth in our application for Letters Patent, vSerial No. 686,183, of which this case is -a division.

The principal object of the' present inven-l tion is to provide a novel construction, of spar base for use in conjunction with a spar and spar cap, whereby simplicity,-eic1ency and cheapness in the over-head skidding of logs is -edected A further object offthe present invention, is to provide a spar base of such construction that when its complementa-l spar and spar cap are in working position, the spar may be readily moved around its own axis. A further object .of the present invention, is to provide a spar base of such construction lthat its complemental `spar Amay be capable of universal lmovement about itsl seat in said base.

Further objects of thepresent invention' relate to the providing of general details of construction and arrangement of? parts.

With these and other objects in View, the

invention consists of, the 'improvements hereinafter described 'and nlly claimed.

The nature, characteristic features and scope of the invention will loe-more fully understood from 'the following description,

. taken in connection with the accompanying drawing, forming part hereof and in which:

Figure 1, is a view in elevation of .a spar base embodying the invention, showing in application thereto a tubular spar of skeleton construction, Fig. 2, is a viewl drawn to an enlarged scale and in central section of a spar base embodying the invention, Fig. 3, is a view in plan of Fig. 2, with certain parts removed, Fig. d, is a top or plan view drawn to a reduced scale of the member shown in the upper portion oi Fig. 2, and Fig. 5, is a top or plan view of the retaining or locking section shown in Fig. 2.

The spar base of the invention is particuilarly adapted Ifor use in connection with the =spar shown and described in our rabovementioned application for Letters Patent, which spar is adapted'for use in the overhead skidding of logs, at the place where the trees areQelled or cut down. Referring lnow more particularlyjto Fig. 1, such spar lisdesignated"10,- and is shownas being of tubular formation and of,generally lattice like or skeleton construction. As this spar forms no part of the present inventiomthe i zsame being claimed in our above-mentioned :application forLetters Patent-further ldescription of this sparis unnecessary. This" spar 10, is supported upon the spar base 11, 'see Figs. 1, 2, and 3. `The spar-base :generally speaking comprises a Spherical supporting structure, which; is received byu socket and locked against removal thereitl-om lbyvirtue of a=retaining section. shown the spherical supporting structure comprises 4a plate 12, of circular configuration, see Fig. 4, the bottom ofv which .is

downwardly tapered to form a neck por-v tion 13, which neck portionterminates'ma depending spherical member '14, lwhich is preferably formed integral with the'plate and neck portions 12 and 113. 'As clearl Ishown in Fig. :1the spar 10, is support'Y upon the late-12, and'is secured thereto as shown. xtending vertically through the spherical supporting structure is a central opening 15. This openingtl, terminates in a generally flarlng portion 116, withinthe' spherical Jmember 14, and at the bottoni thereof. The Haringport'ion 5 16, isV present to permit play of that portion of the main line cable l(not shown in the drawings),

which in practice, passes up through opening 15, and spar 10, to the spar cap. Thespherical member 14, is adaptettobe received within and supported by the socket 17, which forms a part ot the span-base. .This socket 17, has in its bottom an opening 18, which passes vertically through the socket and communicates with the flaring portion 16, of the spherical member 14.

As clearly shown in Fig. 2, the socket 17, is provided with a generally cup-shaped seat 19, provided with a race way 20, see Fig. 3, for the reception of a series o-balls 21. The ball bearing seat thus provided, facilitates the easy movement of the spar 10, when the spherical member 14, is in place within the socket 17. vAs shown the socket i7, is

provided at one side with an extension 22, andi upon its o posit'e side with a cut-away portion 23. Adapted for removable attachment with respect to the cut-away portion 23, of the socket 17, is a retaining or locking section 24, see Fig. 5, cupped out as at 25, to accommodate the spherical member 14. The retaining or locking section 2li, may be secured to the socket 17, by bolts and nuts 26. Toassemble the above described spherical supporting structure and socket parts, the spherical supporting structure is Erst seated within the socket 17, and the retaining or locking section 24, tted to pla yWithin the cut-away portion l23, oit the socket. in this connection, it may be remarked that the bolts that serve to anchor the socket 17, to place, may be4 utilized in securing to place said lsection 24. As shown in Figs. 2 and 3, these bolts extend' up through the body of the socket and project beyond the cut-away portion of the socket.` The retaining or locking section 24, is provided with bolt receiving openings 27, for the accommodation of the `bolts 26,- so that, said retaining .or locking 'section 2d, may be readiiy tted to placeand anchored along `with the socket to any suitable support.

wWhen the above described parts are thus assembled, the spherical supporting structure is prevented from disiodginent Within the socket 17 and is capable of substantially universal movement with respect to the socket. rlihe principal advantage of this universal movement resides iii the tact that the spar l0, may be moved around its ovvn axis, in order to keep lthe main line cable hereinbetore referred to, in proper aline- -rnent-asthe spar is shifted from place to place for the handling of logs.

.A further advantage derived roin the structure just described is that vby the daring ormat-ionof the bottom ora the spherical member, the main line cable is not interfered' with during universal movement of the spar.`

What we claim is: l. A lspar seat for tubular spars comprising a socket having a vertical passage therethrough, a spherical member tted to said socket said member having a vertically disposed daring mouthed passage therethrough,

miami a' ar ar'rying base plate tor said member an means for detachably detaining said spherical member Within said socket.

2. A spar base comprising a socket having .a vertical passage therethroiigh said socket having a cut-away portion at one side thereof, a spar supporting structure provided with a spherical portion seated within said socket said spar supporting structure having a-vertical passage therethrough said passage v having a. daring mouth and a retaining or' locking section fitted to the cut-away portion of said socket. 1

3. A, spar base comprising a spar supporting plate terminating in a depending sphericai member having a vertically disposed daring mouthed passage therethrough, a socket provided with a seat for receiving said spherical member, ball bearings being present between said seat and said spherical member said socket being further provided with a vertical passage which communi- Cates with said daring mouthed passage said socket being i'iirth'er provided with' a cut-' away portion at one side thereof and a retaining or locking section htted to the cutaway portion of the socket and secured thereto. A

d. d spar base comprising-a spar supporting plate ot circular conguiation terminating in a depending spherical member having a vertically disposed daring mouthed pas, sage therethrough, a socket of rectangular coniiguration provided with a seat for receiving said spherical member, ball bearings being present between said seat and said spherical member said socket being provided with afvertical; passage which communicates with said daring mouthed passage said socket being further provided upon its upper ace' with a cut-away portion, a retaining or locking section having a cupped out portion to accommodate said spherical member tted to said cut-away portion and means for locking said section with respect to the socket.

in testimony Whered, we have hereunto signed our naines.

EDWN A. GSKLL. JGS. FRANKLN GASKLL. in presence ot- HANNiii-i Y. Gesamt., d. Ross Saonara'. 

